1 /*
2  * Copyright 2007,2009-2011 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22 
23 #include <common.h>
24 #include <command.h>
25 #include <pci.h>
26 #include <asm/processor.h>
27 #include <asm/immap_86xx.h>
28 #include <asm/fsl_pci.h>
29 #include <asm/fsl_ddr_sdram.h>
30 #include <asm/fsl_serdes.h>
31 #include <i2c.h>
32 #include <asm/io.h>
33 #include <libfdt.h>
34 #include <fdt_support.h>
35 #include <spd_sdram.h>
36 #include <netdev.h>
37 
38 void sdram_init(void);
39 phys_size_t fixed_sdram(void);
40 int mpc8610hpcd_diu_init(void);
41 
42 
43 /* called before any console output */
44 int board_early_init_f(void)
45 {
46 	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
47 	volatile ccsr_gur_t *gur = &immap->im_gur;
48 
49 	gur->gpiocr |= 0x88aa5500; /* DIU16, IR1, UART0, UART2 */
50 
51 	return 0;
52 }
53 
54 int misc_init_r(void)
55 {
56 	u8 tmp_val, version;
57 	u8 *pixis_base = (u8 *)PIXIS_BASE;
58 
59 	/*Do not use 8259PIC*/
60 	tmp_val = in_8(pixis_base + PIXIS_BRDCFG0);
61 	out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x80);
62 
63 	/*For FPGA V7 or higher, set the IRQMAPSEL to 0 to use MAP0 interrupt*/
64 	version = in_8(pixis_base + PIXIS_PVER);
65 	if(version >= 0x07) {
66 		tmp_val = in_8(pixis_base + PIXIS_BRDCFG0);
67 		out_8(pixis_base + PIXIS_BRDCFG0, tmp_val & 0xbf);
68 	}
69 
70 	/* Using this for DIU init before the driver in linux takes over
71 	 *  Enable the TFP410 Encoder (I2C address 0x38)
72 	 */
73 
74 	tmp_val = 0xBF;
75 	i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
76 	/* Verify if enabled */
77 	tmp_val = 0;
78 	i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
79 	debug("DVI Encoder Read: 0x%02x\n", tmp_val);
80 
81 	tmp_val = 0x10;
82 	i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
83 	/* Verify if enabled */
84 	tmp_val = 0;
85 	i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
86 	debug("DVI Encoder Read: 0x%02x\n", tmp_val);
87 
88 	return 0;
89 }
90 
91 int checkboard(void)
92 {
93 	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
94 	volatile ccsr_local_mcm_t *mcm = &immap->im_local_mcm;
95 	u8 *pixis_base = (u8 *)PIXIS_BASE;
96 
97 	printf ("Board: MPC8610HPCD, Sys ID: 0x%02x, "
98 		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
99 		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
100 		in_8(pixis_base + PIXIS_PVER));
101 
102 	/*
103 	 * The MPC8610 HPCD workbook says that LBMAP=11 is the "normal" boot
104 	 * bank and LBMAP=00 is the alternate bank.  However, the pixis
105 	 * altbank code can only set bits, not clear them, so we treat 00 as
106 	 * the normal bank and 11 as the alternate.
107 	 */
108 	switch (in_8(pixis_base + PIXIS_VBOOT) & 0xC0) {
109 	case 0:
110 		puts("vBank: Standard\n");
111 		break;
112 	case 0x40:
113 		puts("Promjet\n");
114 		break;
115 	case 0x80:
116 		puts("NAND\n");
117 		break;
118 	case 0xC0:
119 		puts("vBank: Alternate\n");
120 		break;
121 	}
122 
123 	mcm->abcr |= 0x00010000; /* 0 */
124 	mcm->hpmr3 = 0x80000008; /* 4c */
125 	mcm->hpmr0 = 0;
126 	mcm->hpmr1 = 0;
127 	mcm->hpmr2 = 0;
128 	mcm->hpmr4 = 0;
129 	mcm->hpmr5 = 0;
130 
131 	return 0;
132 }
133 
134 
135 phys_size_t
136 initdram(int board_type)
137 {
138 	phys_size_t dram_size = 0;
139 
140 #if defined(CONFIG_SPD_EEPROM)
141 	dram_size = fsl_ddr_sdram();
142 #else
143 	dram_size = fixed_sdram();
144 #endif
145 
146 	setup_ddr_bat(dram_size);
147 
148 	debug(" DDR: ");
149 	return dram_size;
150 }
151 
152 
153 #if !defined(CONFIG_SPD_EEPROM)
154 /*
155  * Fixed sdram init -- doesn't use serial presence detect.
156  */
157 
158 phys_size_t fixed_sdram(void)
159 {
160 #if !defined(CONFIG_SYS_RAMBOOT)
161 	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
162 	volatile ccsr_ddr_t *ddr = &immap->im_ddr1;
163 	uint d_init;
164 
165 	ddr->cs0_bnds = 0x0000001f;
166 	ddr->cs0_config = 0x80010202;
167 
168 	ddr->timing_cfg_3 = 0x00000000;
169 	ddr->timing_cfg_0 = 0x00260802;
170 	ddr->timing_cfg_1 = 0x3935d322;
171 	ddr->timing_cfg_2 = 0x14904cc8;
172 	ddr->sdram_mode = 0x00480432;
173 	ddr->sdram_mode_2 = 0x00000000;
174 	ddr->sdram_interval = 0x06180fff; /* 0x06180100; */
175 	ddr->sdram_data_init = 0xDEADBEEF;
176 	ddr->sdram_clk_cntl = 0x03800000;
177 	ddr->sdram_cfg_2 = 0x04400010;
178 
179 #if defined(CONFIG_DDR_ECC)
180 	ddr->err_int_en = 0x0000000d;
181 	ddr->err_disable = 0x00000000;
182 	ddr->err_sbe = 0x00010000;
183 #endif
184 	asm("sync;isync");
185 
186 	udelay(500);
187 
188 	ddr->sdram_cfg = 0xc3000000; /* 0xe3008000;*/
189 
190 
191 #if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
192 	d_init = 1;
193 	debug("DDR - 1st controller: memory initializing\n");
194 	/*
195 	 * Poll until memory is initialized.
196 	 * 512 Meg at 400 might hit this 200 times or so.
197 	 */
198 	while ((ddr->sdram_cfg_2 & (d_init << 4)) != 0)
199 		udelay(1000);
200 
201 	debug("DDR: memory initialized\n\n");
202 	asm("sync; isync");
203 	udelay(500);
204 #endif
205 
206 	return 512 * 1024 * 1024;
207 #endif
208 	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
209 }
210 
211 #endif
212 
213 #if defined(CONFIG_PCI)
214 /*
215  * Initialize PCI Devices, report devices found.
216  */
217 
218 #ifndef CONFIG_PCI_PNP
219 static struct pci_config_table pci_fsl86xxads_config_table[] = {
220 	{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
221 	 PCI_IDSEL_NUMBER, PCI_ANY_ID,
222 	 pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
223 				 PCI_ENET0_MEMADDR,
224 				 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER} },
225 	{}
226 };
227 #endif
228 
229 
230 static struct pci_controller pci1_hose;
231 #endif /* CONFIG_PCI */
232 
233 void pci_init_board(void)
234 {
235 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
236 	volatile ccsr_gur_t *gur = &immap->im_gur;
237 	struct fsl_pci_info pci_info;
238 	u32 devdisr;
239 	int first_free_busno;
240 	int pci_agent;
241 
242 	devdisr = in_be32(&gur->devdisr);
243 
244 	first_free_busno = fsl_pcie_init_board(0);
245 
246 #ifdef CONFIG_PCI1
247 	if (!(devdisr & MPC86xx_DEVDISR_PCI1)) {
248 		SET_STD_PCI_INFO(pci_info, 1);
249 		set_next_law(pci_info.mem_phys,
250 			law_size_bits(pci_info.mem_size), pci_info.law);
251 		set_next_law(pci_info.io_phys,
252 			law_size_bits(pci_info.io_size), pci_info.law);
253 
254 		pci_agent = fsl_setup_hose(&pci1_hose, pci_info.regs);
255 		printf("PCI: connected to PCI slots as %s" \
256 			" (base address %lx)\n",
257 			pci_agent ? "Agent" : "Host",
258 			pci_info.regs);
259 #ifndef CONFIG_PCI_PNP
260 		pci1_hose.config_table = pci_mpc86xxcts_config_table;
261 #endif
262 		first_free_busno = fsl_pci_init_port(&pci_info,
263 					&pci1_hose, first_free_busno);
264 	} else {
265 		printf("PCI: disabled\n");
266 	}
267 
268 	puts("\n");
269 #else
270 	setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_PCI1); /* disable */
271 #endif
272 
273 	fsl_pcie_init_board(first_free_busno);
274 }
275 
276 #if defined(CONFIG_OF_BOARD_SETUP)
277 void
278 ft_board_setup(void *blob, bd_t *bd)
279 {
280 	ft_cpu_setup(blob, bd);
281 
282 	FT_FSL_PCI_SETUP;
283 }
284 #endif
285 
286 /*
287  * get_board_sys_clk
288  * Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
289  */
290 
291 unsigned long
292 get_board_sys_clk(ulong dummy)
293 {
294 	u8 i;
295 	ulong val = 0;
296 	u8 *pixis_base = (u8 *)PIXIS_BASE;
297 
298 	i = in_8(pixis_base + PIXIS_SPD);
299 	i &= 0x07;
300 
301 	switch (i) {
302 	case 0:
303 		val = 33333000;
304 		break;
305 	case 1:
306 		val = 39999600;
307 		break;
308 	case 2:
309 		val = 49999500;
310 		break;
311 	case 3:
312 		val = 66666000;
313 		break;
314 	case 4:
315 		val = 83332500;
316 		break;
317 	case 5:
318 		val = 99999000;
319 		break;
320 	case 6:
321 		val = 133332000;
322 		break;
323 	case 7:
324 		val = 166665000;
325 		break;
326 	}
327 
328 	return val;
329 }
330 
331 int board_eth_init(bd_t *bis)
332 {
333 	return pci_eth_init(bis);
334 }
335 
336 void board_reset(void)
337 {
338 	u8 *pixis_base = (u8 *)PIXIS_BASE;
339 
340 	out_8(pixis_base + PIXIS_RST, 0);
341 
342 	while (1)
343 		;
344 }
345